JPH03195194A - Remote supervisory and control system - Google Patents

Abstract

PURPOSE:To improve the transmission efficiency of a transmitting signal by detecting the operation input of up dimming or down dimming by a central control unit, transmitting a control signal and executing updimming or down dimming by a dimming control terminal equipment itself for lighting load until a stop signal is received again by the dimming control terminal equipment. CONSTITUTION:When an up dimming switch S5 or a down dimming switch S6 is pushed, a central control unit 1 detects the operation input of up dimming or down dimming and transmits the control signal of up dimming or down dimming to a dimming control terminal equipment 3a and at the dimming control terminal equipment 3a, the dimming level of the lighting load is successively turned up or down by the terminal equipment itself. When the up dimming switch S5 or the down dimming switch S6 is detached, the central control unit detects such a state as the stop input of a dimming level change and transmits this stop signal to the dimming control terminal equipment 3a and the dimming control terminal equipment 3a receiving the stop signal stops the executing change of the dimming level. Thus, when the dimming of lighting load L1 is controlled from the central control unit 1 through the dimming control terminal equipment 3a, the transmission efficiently can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote monitoring and control system that accesses terminals from a central control unit and transmits data via time division multiplexing.

[Prior Art] Conventionally, a central control device manages the dimming control level of each dimming control terminal, that is, stores it in a RAM in the central control device, and controls the dimming control level by switching up or down dimming. When the input of the optical switch is detected, the dimming level data stored in the RAM is increased one by one, the increased level data is transmitted to the dimming control terminal, and the dimming control of the lighting load is performed. I was going.

[Problems to be Solved by the Invention] In this conventional method, the transmission of the dimming level must be continued while the up dimmer switch or the down dimmer switch is pressed, resulting in a problem of poor transmission efficiency. was there.

The present invention has been provided in view of the above-mentioned points, and is aimed at improving the transmission efficiency of dimming control of lighting loads from a central control device via a dimming control terminal device. It provides a control system.

[Means for Solving the Problem] The present invention connects a dimmer switch terminal device that monitors an up dimmer switch and a down dimmer switch, and a dimmer control terminal device that controls dimming of a lighting load to a signal line. When the up dimmer switch or the down dimmer switch is pressed, the central control unit detects the up dimmer or down dimmer operation input, and sends up or down dimmer to the dimmer control terminal. When the up dimmer switch or the down dimmer switch is released, the central controller transmits a control signal as a stop signal to stop the dimming up or down to the dimming control terminal device. A signal processing means is provided in the central control device, and when the dimming control terminal device receives an up dimming or down dimming signal, it automatically controls the lighting load until it receives a stop signal again. It is equipped with a control means for dimming the light down.

[Function] With the above configuration, when the up dimmer switch or the down dimmer switch is pressed, the central controller detects the operation input for up dimming or down dimming, and sends the up dimming to the dimming control terminal. Or transmits a control signal for down dimming, and in the dimming control terminal device, the dimming level of the lighting load is sequentially changed up or down (brighter or darker) on the terminal device itself, and the up dimming switch or When the down dimmer switch is released, the central controller detects the change in dimming level as a stop input and transmits this stop signal to the dimming control terminal;
Upon receiving the stop signal, the dimming control terminal device stops changing the dimming level.

[Implementation rN] Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1st
The figure shows a schematic configuration of an embodiment of the present invention, which includes a central control unit 1, operation switches S to which a unique address is set,
A plurality of monitoring terminals 2 that monitor S, loads L1 to L,
A plurality of control terminals 3, optical wireless relay terminals 7, data external interface terminals 8, and pattern setting terminals 9 are connected by a pair of signal lines 4, and are connected to each other by a pair of signal lines 4. As shown in FIG. 2(a), the transmission signal Vs sent to the signal line 4 includes a start pulse signal ST indicating the start of signal transmission, a mode data signal MD indicating the signal mode, and a signal 8 for calling the terminals 2 and 3. Address data signal AD transmitting bit address data, control data signal CD transmitting control data 1, which loads and controls ~L4, checksum data signal C8, and terminal equipment 2, 3, 7° 8.9 This is a bipolar (±24V) time-division multiplexed signal consisting of a return waiting period signal WT that sets the signal return period from the WT, and data is transmitted by pulse width modulation.

In addition, each terminal device 2.3.7, 8.9 rectifies and smoothes the transmission signal Vs received via the signal line 4 to form a terminal circuit power supply. .9 power is supplied from the central control unit 1 via the signal line 4. In addition, each terminal device 2, 3, 7, 8.9 takes in the control data of the transmission signal Vs when the address data transmitted by the transmission signal Vs matches its own unique address data, and also takes in the control data of the transmission signal Vs. Vs return standby signal W
In synchronization with T, the monitoring data signal (operation status monitoring information of operation switches, load operating status information, etc.) is sent as a current mode signal (signal sent by connecting an appropriate low resistance between signal lines 4). It is supposed to be sent back. The return signal is a bare signal with wide and narrow pulses as shown in Figure 5, in order to easily check for signal collisions during group access (simultaneous access to multiple terminals). It is a 4-bit signal V1 to ■1 that represents "," and "0", and is used for a predetermined period T during the return period T.
1 to T4 (RO to Rt).

In addition, a monitoring terminal device 2. Data transmission from the optical wireless relay terminal device 7 to the central control device 1 is performed by interrupt processing.

That is, the central control unit 1 always sends out a dummy transmission signal Vs in which the mode data signal MD is in a dummy mode, and the dummy transmission signal Vs, which is returned from one of the terminals 2.7 (see FIG.
When the interrupt request signal Vi as shown in b) is received in synchronization with the start pulse signal ST, a 5-interrupt polling mode transmission signal is transmitted and the interrupt generation terminal 2
is detected, the detected interrupt generating terminal 2 is accessed, and the data is sent back (the operation will be described later).

In addition, the central control device 1 also operates the terminal device 2 as described above.
, 7 . . . to the central control device 1 (for example, operation switches S, ~S.

The corresponding load, ~L, based on the operating state information).

At the same time, the control data is created to be transmitted to the control terminal 3 that controls the control terminal 3, and the control data is time-division multiplexed by accessing the control terminal 3 to control the load, ~L4, and the return period. Based on the monitoring data (e.g. load, operating status information of L4) sent back to It has become.

FIG. 3 shows the dimming control terminal 3a, and the signal line 4
a power supply unit 10 that rectifies and smoothes the transmission signal Vs transmitted through the terminal to form a terminal power supply; and a signal processing of the transmission signal Vs.
a signal processing unit 11 that performs signal processing of the return signal ■6;
An address setting section 12 that sets a unique address, a relay driving section 14 that drives the relay 15 based on control data, and a monitoring input section 16 that monitors the operating state of the relay 15.
A zero-crossing detection unit 17 outputs a zero-crossing signal synchronized with the zero-crossing point of the commercial power supply AC, and the lighting load is dimmed by controlling the phase based on the dimming control data and the zero-crossing signal, and also dimming the lighting load based on the relay contact r. It is comprised of a dimming control circuit 18 that controls the lighting load on and off.

The fourth UgJ (a) shows the dimmer switch terminal device 2a, which includes a power supply section 1o, a signal processing section 11, an address setting section 12, and a function setting section 13 for setting terminal device functions (described later).
a, an operation display section 15' that displays the dimming level and on/off state of the lighting load L1 using a large number of light emitting diodes LD arranged in a row, and an up dimmer switch S1. It is composed of a monitoring input section 16 that monitors the operation status of the down dimmer switch 86 and the like. The fourth UgJ (b) shows an example of setting the terminal function. In the example, the switch input (SW) or contact input terminal (T/LJ) is set (input method is set) by 4-bit data. ), and allows you to set functions such as delayed light-off, negative time light-off, contact interlocking, and operating time.

As described above, in the embodiment, in the remote monitoring and control device in which control data and monitoring data are time-division multiplexed and transmitted via a pair of signal lines 4, the up dimmer switch S6 and the down dimmer switch A signal line 4 connects a dimmer switch terminal 2a that monitors the dimmer S, and a dimmer control terminal 3a equipped with a dimmer control circuit 18 that controls the dimming of the lighting load.
, and the switch S1. of the dimmer switch terminal 2a. S
.

The central control device 1 is provided with a signal processing means for monitoring the operating state of the device by interrupt processing and creating dimming control data.
a, transmit the dimming control data, and adjust the lighting load L.
By connecting the dimmer switch terminal 2a to the signal line 4, the lighting load L1 can be dimmed and controlled from any location.

In addition, the operation data of the switch (corresponding to up dimmer switch and down dimmer switch) input using optical wireless transmitter/receiver X and Y that transmit data by optical signals is sent to optical wireless relay terminal 7 and signal line 4. If the light is sent back to the central control device 1 via the , it is possible to easily control the lighting load from any position, which further improves usability.

FIG. 6 shows a device provided with a load number setting section 13 for setting which loads 1 to L connected to a plurality of load control circuits (four circuits in the embodiment) of the control terminal 3 are to be controlled. The other configuration and operation are the dimmer switch terminal 2a.
It is similar to

The operation of the embodiment will be explained below. FIG. 7 shows a data transmission system in which switch monitoring information is transmitted to the central controller 1 by interrupt processing when a change in the switch input (operation of Ss, S6) connected to the dimmer switch terminal 2a is detected. As an example, when, for example, the up dimmer switch S is operated on the dimmer switch terminal 2a and a switch input change is detected, the change is set in the input latch and an interrupt request is immediately made. Dummy mode transmission signal V in which pulse Vi is constantly transmitted
It is sent out in synchronization with the start pulse signal ST of s. When the central control unit 1 receives this interrupt request signal Vi, it sends an interrupt polling mode transmission signal V8 for detecting the interrupt request terminal 2a, . . . which is generating the interrupt request signal Vi. Then, the interrupt request terminal 2a, . . . returns a unique address. Here, in the embodiment, all the terminals are accessed in groups of 16 by transmitting the upper 4 bits of the 8-bit address data using the transmission signal VS in the interrupt polling mode, and the terminals accessed in the group are 2a,
If there is an interrupt requesting terminal 2a among them, the lower 4 bits of the address data are returned from the terminal 2a, and the transmitted upper 4 bits of address data and the returned lower 4 bits are The unique address of the interrupt request terminal device 2a is detected by combining the addresses of the interrupt request terminal device 2a, and the interrupt request terminal device 2a is determined.

Next, the interrupt request terminal device 2a is accessed based on the unique address determined from the central control device 1, and a monitoring mode transmission signal Vs is sent to return the input latch data as monitoring data, and the interrupt request terminal device 2a is accessed. The input latch data is returned during a predetermined return period, and the state of change of the γ-tub dimmer switch S5 is checked. Next, input latch reset mode transmission signal V to reset the input latch
S is sent to reset the input latch of the dimmer switch terminal 2a where the up dimmer switch S5 has been operated, and it is placed in a standby state until the next switch input changes.

Next, the central control device 1 activates the up dimmer switch S based on the confirmed input latch data.

It is determined that the button has been operated, and the up dimmer switch S is turned on.

When it is confirmed that this is the case, the state monitoring mode accesses the dimming control terminal 3a corresponding to the interrupt request terminal 2a and returns the operating status W3 (dimming status g) of the lighting load as monitoring data. The 0th order transmits the transmission signal Vs of the dimming control terminal 3a, returns status monitoring data (on/off status of lighting load, dimming level status), and monitors the status of the dimming control terminal 3a. , the central control device 1 transmits a control signal for hair knob dimming to the dimming control terminal 3a,
In the dimming control terminal 3a, the dimming control circuit 18 constituting the control means is set to a mode for increasing the dimming level, and the dimming control terminal 3a itself continues to increase the dimming of the lighting load. At this time, since the dimming control circuit 18 controls the change in the dimming level of the lighting load (in this case, up dimming) by the dimming control terminal 3a itself, the central controller 1
During this time, processing with other terminals is possible.

Here, when the dimming control terminal 3a continues up dimming and there is a change in the dimming level beyond the preset value,
This information is transmitted from the dimming control terminal 3a to the central control device 1 through interrupt processing, and the central control device 1 creates display data such as level changes. And the central control device 1
The display data is then transmitted to the dimmer switch terminal 2a via a transmission means, and the dimmer switch terminal 2a displays the on/off status of the lighting load and the dimming level status using a light emitting diode LD. . On the other hand, the dimming control terminal 3a continues to perform up dimming.

Even while the dimming control terminal 3a continues to perform up dimming, the central control device 1 can perform other processing.

Next, when the up dimmer switch S is released, the dimmer switch terminal 2a detects this, uses this detection signal as a stop signal, generates an interrupt input, and uses the same operation as described above to interrupt the The central control device 1 transmits the stop signal to the dimming control terminal 3a. The dimming control terminal device 3a that received the stop signal starts the dimming control circuit 18.
to stop the up dimming mode. In addition, the central control device ll sends out a transmission signal Vs of an input latch reset mode that resets the input latch, resets the input latch of the dimmer switch terminal 2a, and puts it in a standby state until the next switch input changes. .

In this way, the lighting load dimming operation (up dimming) by interrupt processing is completed.

Although the above description has been made regarding the case of up dimming, the same applies to the case of down dimming.

[Effects of the Invention] As described above, the present invention connects a dimmer switch terminal device that monitors an up dimmer switch and a down dimmer switch, and a dimmer control terminal device that controls dimming of a lighting load to a signal line. death,
When the up dimmer switch or the down dimmer switch is pressed, the central control device detects the operation input for up or down dimming, and also sends up or down dimming control to the dimming control terminal. Signal processing that transmits a control signal as a stop signal that causes the central controller to stop dimming up or down when the up dimmer switch or down dimmer switch is released, to the dimming control terminal device. A means is provided in the central control device, and the dimming control terminal device, when receiving the up dimming or down dimming signal, automatically controls the lighting load until it receives a stop signal again. Since the device is equipped with a control means to turn on the light, when the up dimmer switch or the down dimmer switch is pressed, the central control device detects the operation input for up or down dimming, and the dimming control terminal A control signal for up dimming or down dimming is transmitted to the dimming control terminal, and the dimming level of the lighting load is sequentially changed up or down (brighter or darker) on the terminal itself, and When the dimmer switch or down dimmer switch is released, the central controller detects the change in dimming level as a stop input, transmits this stop signal to the dimming control terminal, and controls the dimming that receives the stop signal. The control terminal device is designed to stop changes in the dimming level that were being performed, and while the dimming control terminal device itself is controlling the dimming of the lighting load, the central control device is unable to perform other processing. This has the effect of increasing the transmission efficiency of transmission signals.

In addition, in order to display the dimming level on the dimmer switch terminal, when there is a change in the dimming level beyond a preset value, the central controller is equipped with a transmission means that transmits the dimming level by interrupt. This makes it easy to set the lighting load to an appropriate dimming level by seeing a change in the dimming level beyond a preset value and releasing the up dimmer switch or down dimmer switch. .

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the same operation as above, Fig. 3 and Fig. 4 (a) are main part block circuit diagrams of the above, Fig. 4 (b) 5 is an explanatory diagram of the same operation as above, FIG. 6 is a main block circuit diagram of the same as the above, and FIG. 7 is an explanatory diagram of the same as the above. 1 is a central control unit, 2 is a terminal, 2a is a dimmer switch terminal, 3 is a terminal, 3a is a dimmer control terminal, and 4 is a signal line.

Claims (2)

[Claims] (1) Remote monitoring control in which a central control unit and multiple terminals are connected via a pair of signal lines, and the central control unit accesses each terminal to transmit control data and monitoring data via time division multiplexing. In the system, a dimmer switch terminal device that monitors the up dimmer switch and down dimmer switch and a dimmer control terminal device that controls the dimming of the lighting load are connected to a signal line, and the up dimmer switch or down dimmer switch is When the switch is pressed, the central control device detects the operation input for up dimming or down dimming, and transmits a control signal for up dimming or down dimming to the dimming control terminal, and performs up dimming. The central control device is provided with a signal processing means for transmitting a control signal as a stop signal for stopping the dimming up or down again to the dimming control terminal when the switch or the down dimmer switch is released, The dimming control terminal device shall be provided with a control means that, when receiving an up dimming or down dimming signal, causes the lighting load to be dimmed up or down by the dimming control terminal itself until it receives a stop signal again. A remote monitoring and control system featuring: (2) In order to display the dimming level on the dimmer switch terminal, it has a transmission means that transmits the dimming level to the central controller by interrupt when there is a change in the dimming level beyond a preset value. The remote monitoring and control system according to claim 1.